84 lines
3.2 KiB
JavaScript
84 lines
3.2 KiB
JavaScript
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"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.Signed = exports.isMetadataKind = exports.MetadataKind = void 0;
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const util_1 = __importDefault(require("util"));
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const error_1 = require("./error");
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const utils_1 = require("./utils");
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const SPECIFICATION_VERSION = ['1', '0', '31'];
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var MetadataKind;
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(function (MetadataKind) {
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MetadataKind["Root"] = "root";
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MetadataKind["Timestamp"] = "timestamp";
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MetadataKind["Snapshot"] = "snapshot";
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MetadataKind["Targets"] = "targets";
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})(MetadataKind = exports.MetadataKind || (exports.MetadataKind = {}));
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function isMetadataKind(value) {
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return (typeof value === 'string' &&
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Object.values(MetadataKind).includes(value));
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}
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exports.isMetadataKind = isMetadataKind;
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/***
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* A base class for the signed part of TUF metadata.
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*
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* Objects with base class Signed are usually included in a ``Metadata`` object
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* on the signed attribute. This class provides attributes and methods that
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* are common for all TUF metadata types (roles).
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*/
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class Signed {
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constructor(options) {
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this.specVersion = options.specVersion || SPECIFICATION_VERSION.join('.');
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const specList = this.specVersion.split('.');
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if (!(specList.length === 2 || specList.length === 3) ||
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!specList.every((item) => isNumeric(item))) {
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throw new error_1.ValueError('Failed to parse specVersion');
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}
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// major version must match
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if (specList[0] != SPECIFICATION_VERSION[0]) {
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throw new error_1.ValueError('Unsupported specVersion');
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}
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this.expires = options.expires || new Date().toISOString();
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this.version = options.version || 1;
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this.unrecognizedFields = options.unrecognizedFields || {};
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}
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equals(other) {
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if (!(other instanceof Signed)) {
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return false;
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}
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return (this.specVersion === other.specVersion &&
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this.expires === other.expires &&
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this.version === other.version &&
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util_1.default.isDeepStrictEqual(this.unrecognizedFields, other.unrecognizedFields));
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}
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isExpired(referenceTime) {
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if (!referenceTime) {
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referenceTime = new Date();
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}
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return referenceTime >= new Date(this.expires);
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}
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static commonFieldsFromJSON(data) {
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const { spec_version, expires, version, ...rest } = data;
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if (utils_1.guard.isDefined(spec_version) && !(typeof spec_version === 'string')) {
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throw new TypeError('spec_version must be a string');
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}
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if (utils_1.guard.isDefined(expires) && !(typeof expires === 'string')) {
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throw new TypeError('expires must be a string');
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}
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if (utils_1.guard.isDefined(version) && !(typeof version === 'number')) {
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throw new TypeError('version must be a number');
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}
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return {
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specVersion: spec_version,
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expires,
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version,
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unrecognizedFields: rest,
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};
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}
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}
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exports.Signed = Signed;
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function isNumeric(str) {
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return !isNaN(Number(str));
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}
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